Sizes US000 (1.5mm) – US3 (3.25mm) are solid, have a tightening hole and MINI [M] diameter join.
These are included in the Red Shorties set.
Sizes US4 (3.5mm) – US8 (5mm) are hollow and have a small [S] diameter join.
These are included in the Blue Shorties set.
Sizes US9 (5.5mm) – US11 (8mm) are hollow and have a large [L] diameter join.
These are included in the Yellow Shorties set.
The size is laser imprinted on each tip.
